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CompTIA Linux+ (XK0-005)

Course Length: 5 days
Certifications: CompTIA Linux+
Number of Exams: 1

Class Schedule
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  • Certified Instructor
  • Includes all course materials

CompTIA Linux+ validates the competencies required of an early career system administrator supporting Linux systems.

CompTIA Linux+ validates the skills administrators need to secure the enterprise, power the cloud and keep systems running. The new certification ensures that IT professionals, software developers, cybersecurity engineers and penetration testers have these necessary skills to support today's tech systems.

CompTIA Linux+ is the only job-focused Linux certification covering the latest foundational skills demanded by hiring managers.

What Skills Will You Learn?

  • System Management
    Configure and manage software, storage and process and services
  • Security
    Understand best practices for permissions and authentication, firewalls, and file management
  • Scripting, Containers & Automation
    Create simple shell scripts and execute basic BASH scripts, version control using Git, and orchestration processes
  • Troubleshooting
    Analyze system properties and processes and troubleshoot user, application and hardware issues

Jobs that use CompTIA Linux+

  • Linux Administrator
  • Junior Cloud Engineer
  • Junior DevOps Support Engineer
  • Technical Support Specialist
  • Systems Administrator
  • Network Administrator
  • Web Administrator/ Developer
  • Cybersecurity Engineer
  • Linux Engineer

Exam: XK0-005

The CompTIA Linux+ certification exam will verify the successful candidate has the knowledge and skills required configure, manage, operate, and troubleshoot Linux on-premises and cloud-based server environments, while using security best practices, scripting, containerization, and automation.

Course Content

1.0 System Management
Summarize Linux fundamentals.
  • Filesystem Hierarchy Standard (FHS)
  • Basic boot process
  • Kernel panic
  • Device types in /dev
  • Basic package compilation from source
  • Storage concepts
  • Listing hardware information
Given a scenario, manage files and directories.
  • File editing
  • File compression, archiving, and backup
  • File metadata
  • Soft and hard links
  • Copying files between systems
  • File and directory operations
Given a scenario, configure and manage storage using the appropriate tools.
  • Disk partitioning
  • Mounting local and remote devices
  • Filesystem management
  • Monitoring storage space and disk usage
  • Creating and modifying volumes using Logical Volume Manager (LVM)
  • Inspecting RAID implementations
  • Storage area network (SAN)/ network-attached storage (NAS)
  • Storage hardware
Given a scenario, configure and use the appropriate processes and services.
  • System services
  • Scheduling services
  • Process management
Given a scenario, use the appropriate networking tools or configuration files.
  • Interface management
  • Name resolution
  • Network monitoring
  • Remote networking tools
Given a scenario, build and install software.
  • Package management
  • Sandboxed applications
  • System updates
Given a scenario, manage software configurations.
  • Updating configuration files
  • Configure kernel options
  • Configure common system services
  • Localization
2.0 Security
Summarize the purpose and use of security best practices in a Linux environment.
  • Managing public key infrastructure (PKI) certificates
  • Certificate use cases
  • Authentication
  • Linux hardening
Given a scenario, implement identity management.
  • Account creation and deletion
  • Account management
Given a scenario, implement and configure firewalls.
  • Firewall use cases
  • Common firewall technologies
  • Key firewall features
Given a scenario, configure and execute remote connectivity for system management.
  • SSH
  • Executing commands as another user
Given a scenario, apply the appropriate access controls.
  • File permissions
  • Security-enhanced Linux (SELinux)
  • Minimum
  • AppArmor
  • Command-line utilities
3.0 Scripting, Containers, and Automation
Given a scenario, create simple shell scripts to automate common tasks.
  • Shell script elements
  • Common script utilities
  • Environment variables
  • Relative and absolute paths
Given a scenario, perform basic container operations.
  • Container management
  • Container image operations
Given a scenario, perform basic version control using Git.
  • clone
  • push
  • pull
  • commit
  • add
  • checkout
  • branch
  • tag
  • gitignore
Summarize common infrastructure as code technologies.
  • File formats
  • Utilities
  • Continuous integration/continuous deployment (CI/CD)
  • Advanced Git topics
Summarize container, cloud, and orchestration concepts.
  • Kubernetes benefits and application use cases
  • Single-node, multicontainer use cases
  • Container persistent storage
  • Container networks
  • Service mesh
  • Bootstrapping
  • Container registries
4.0 Troubleshooting
Given a scenario, analyze and troubleshoot storage issues.
  • High latency
  • Low throughput
  • Input/output operations per second (IOPS) scenarios
  • Capacity issues
  • Filesystem issues
  • I/O scheduler
  • Device issues
  • Mount option problems
Given a scenario, analyze and troubleshoot network resource issues.
  • Network configuration issues
  • Firewall issues
  • Interface errors
  • Bandwidth limitations
  • Name resolution issues
  • Testing remote systems
Given a scenario, analyze and troubleshoot central processing unit (CPU) and memory issues.
  • Runaway processes
  • Zombie processes
  • High CPU utilization
  • High load average
  • High run queues
  • CPU times
  • CPU process priorities
  • Memory exhaustion
  • Out of memory (OOM)
  • Swapping
  • Hardware
Given a scenario, analyze and troubleshoot user access and file permissions.
  • User login issues
  • User file access issues
  • Password issues
  • Privilege elevation
  • Quota issues
Given a scenario, use systemd to diagnose and resolve common problems with a Linux system.
  • Unit files
  • Common problems

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